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Why We Don't Carry HD-SDI or CVI, but Do Carry IP and TVI

Do you remember when you could buy HD-DVDs and Blu Ray DVDs? How about Beta-Max or VHS?


HD-SDI, TVI, CVI, and IP are four competing standards for HD video recording. Like Beta-Max and HD-DVD's, HD-SDI wound up on the losing end of a format war against IP cameras and NVRs for the the HD surveillance camera standard. Now, HD-SDI's "replacement" CVI will fail too. TVI might survive. Here's why:


2010-2013: IP vs. HD-SDI - IP won

We stopped carrying HD-SDI about a year and half ago (middle of 2013) and now most major manufacturers are abandoning the technology due to the high cost of production and turning instead to less expensive alternatives like TVI that offer better technology at a lower cost. This means that if you do buy an HD-SDI system, you may not be able to add a camera later or replace a broken one.

IP cameras have come down significantly in price from where they once were in 2010, deliver a better image quality than HD-SDI, and provide a easier to manage solution that can communicate with other digital devices such as alarms, POS, and access control units.

Why HD-SDI lost: Installation Comparison of 16 Channel HD systems:

SCW HD Systems: Easy

Notice how all the cameras plug into the NVR? This means that all the cameras will auto-configure and be powered by the NVR. There's no need to know how to set IP address or do any networking setup.
Plug in the one wire and it works.

Analog, CVI, TVI, and HD-SDI: Difficult

Notice how these systems requires an electrician's help? Power distribution boxes are complicated and have exposed wires. You can use power plugs for each camera, but that's gets cluttered and may not have any protection from power surges.


The only real benefit that HD-SDI had was that you didn't have to rewire if you had already run BNC Siamese cable.

...or so everyone thought.

HD-SDI is all but dead for respectable companies, because the main benefit of HD-SDI ("You don't have to rewire!") ended up not being entirely truthful. HD-SDI is really fussy about cabling, which meant a lot of people had to re-run the cable anyway because of small nicks, kinks, or other unknown issues with the line. This often meant that you really did have to replace your old cable.

More and more devices are becoming networked as the world transitions to "the network of things" and industries like home-automation take off. Only with IP cameras and NVR will all your networked systems will be able to talk with each other, and as 4K TVs take off and the price of higher-than-1080P cameras decreases, 1080P will no longer be considered a "good enough" system. Nearly all innovation in the industry has been and will continue to be "IP first."

If you question is, "What do I do on a new install?", go with IP cameras and an NVR.

Interlude: "But I heard IP is susceptible to hacking because they are on the internet and the other technologies are more secure"

That's a common misconception. IP stands for "Internet Protocol", but it might be more helpful to think of IP as "Internal Processor." An IP camera uses the standard way of communicating that all networked devices use to transfer files. It doesn't mean that they are on the internet. The DVR that you use for HD-SDI or TVI or CVI translates the video feed from the HD-SDI, CVI or TVI cameras to digital files that you can view on your smartphone, tablet, or PC via this same internet protocol. The translation from a video feed to digital file on a hard drive is very taxing on the DVR, and the reason that IP cameras can do much higher resolution than TVI, CVI or HD-SDI is that the cameras have internal processors that split the work up among all the cameras rather than one single processor attempting to do all of them. Most IP cameras setups (and all the ones we provide) put the cameras on their own subnet automatically by the NVR (a subnet is a network within a network, and hides the cameras from being seen remotely). If you choose to setup remote viewing, both NVRs and DVRs can be accessed via the internet in exactly the same way, and both require secure logins and passwords.

But, what if your question is "I've already run BNC Siamese cable for my analog system and I want to upgrade, what should I do?"

Although you would never want to run legacy BNC cable on a new installation, the cost of removing cable you already run and putting in new cable, can be daunting. You will have to do it eventually, but it may make sense for you to do it later.

2014: The Rise of CVI and TVI and the Liquidation of HD-SDI

HD-SDI is quickly being replaced by HD-CVI and HD-TVI, which like HD-SDI, use BNC Siamese cable but have less issues with loss of signal on long runs.

Companies are trying to liquidate their stock of HD-SDI by reducing prices.

CVI is only made by one company: [company name removed at their request]

We won't be carrying HD-CVI at all. The main reason we won't carry it is that HDCVI Digital Signal Processors (DSP) and HDCVI Digital Video Recorder (DVR) boards are only made by one company: [company name removed at their request]

Although it uses the same cable, CVI (Composite Video Interface) is not backwards compatible with analog cameras and is available in 720P or 1080P versions. The Generation I (what is in most stores now) CVI 1080P versions are not even backwards compatible with CVI 720P. [company name removed at their request] just came out with Gen II which supposedly works with both their 1080P and 720P cameras, but few stores have them in the United States). [company name removed at their request] also now sells “Tribrid” model DVRs which are compatible with SD analog, HD-CVI analog, and IP cameras, but Tribrid DVRs are more expensive.

Number of companies that manufacture CVI:

1

Number of companies that manufacture TVI:

100

HD-TVI is Backwards Compatible, and is Made by Many Manufacturers

With CVI you can only buy [company name removed at their request] manufactured cameras or recorders - and if [company name removed at their request] goes out of business or starts overcharging for their products, you are stuck. With TVI you can shop around, because it is an open platform - you don’t get boxed into one provider. If Samsung innovates something new, you can buy it. If you like the Aptina sensors in the cameras made by TVT and the UI on Hikivision's TVI DVR, you can mix-and-match and use both of them, because it is an open platform. Both TVI and CVI are young platforms and will have additional innovations, the flexibility of being able to work with any manufacturer is more important than an individual feature at this point. Techpoint claims that 100 different manufacturers use their technology.

We think TVI (Transport Video Interface) will become the new analog. It is backwards compatible with analog cameras and is available in 720P or 1080P versions. The TVI 1080P version is backwards compatible with TVI 720P.

Although HD-TVI is able to do 720P and 1080P, we expect HD-TVI to replace traditional analog cameras, not HD IP cameras. IP cameras are still going to be the most versatile, best performing cameras on the market. Because they have their own processors and IP addresses, you will still be able to do video analytics like motion detection and intruder alert emails, have easy to use settings that can be changed with any web browser, will still be able to communicate with other digital devices, and will still have the easiest installation (no power distribution boxes necessary and no need for an electrician - just one cable to clip into place for power video and for auto-configuring the network).

HD-TVI is backwards compatible, unlike HD-SDI, so you will still be able to connect traditional analog cameras. If you are considering HD-SDI or HD-CVI, we think the best bet is to look at IP cameras or wait for TVI.

Don't get stuck with the Betamax of the surveillance world.

Beyond 2015: IP Cameras and NVRs Will Outpace TVI, CVI, and HD-SDI Combined

We expect HD-TVI to be a hit, but that doesn't mean it is the best. TVI should take over and become the new analog. Even at day 1 launch, TVI is not as good as IP, despite being newer.

1080P is about 2.4MP, our IP cameras are almost all 3MP or higher. We have some 5MP cameras as well as a 6MP.

If you already have analog BNC cable run, TVI is a great way to upgrade to HD.

If you Haven't Run Old-School BNC Cable, it's Hard to Argue with Higher Resolution and Lower Installation Costs of IP, even if TVI products are cheaper.

8 Item(s)

per page

Set Descending Direction

  1. The Econ HD 4 Channel HD-TVI DVR - - SKU: EC1004

    The Econ HD 4 Channel HD-TVI DVR - - SKU: EC1004

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $109.00

    TVI Resolution Backwards Compatibility Features Connects Via
    With a TVI Camera
    720P at 30 FPS or 1080P at 12 FPS

    720PHD
    You can also connect Analog Cameras to this recorder and they will record at: 960h (960 x 480)

    1 hard drive bays
    Motion Detection
    Footage Download
    Online Viewing
    USB Backup
    VGA and HDMI Out
    Smartphone Apps
    Tablet Apps
    Windows Viewing + Apps
    Mac Viewing + Apps
    Easy Backup to USB
    Standard 3-Prong Wall Plug
    4 BNC Analog/TVI ports on back
    You can also add 1 1080P IP camera from your network
    power box pigtails siamese cable

    Backwards Compatability.


    TVI is a HD over BNC cable solution that is Backward Compatible with Analog Cameras.It is perfect for upgrading to HD without having to replace wiring, but will not replace IP cameras as the dominant cameras of the future. TVI recorders can accept signal from TVI cameras (SCW, Samsung, TVT, and Hikvision make TVI cameras) or Analog cameras. TVI is a transitional technology to help people with already existing cable get higher resolutions. All new installations should use IP cameras and NVRs as IP can already do 5x the resolution as TVI.



  2. The Econ HD 8 Channel HD-TVI DVR - - SKU: EC1008

    The Econ HD 8 Channel HD-TVI DVR - - SKU: EC1008

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $199.00

    TVI Resolution Backwards Compatibility Features Connects Via
    With a TVI Camera
    720P at 30 FPS or 1080P at 12 FPS

    720PHD
    You can also connect Analog Cameras to this recorder and they will record at: 960h (960 x 480)

    1 hard drive bays
    Motion Detection
    Footage Download
    Online Viewing
    USB Backup
    VGA and HDMI Out
    Smartphone Apps
    Tablet Apps
    Windows Viewing + Apps
    Mac Viewing + Apps
    Easy Backup to USB
    Standard 3-Prong Wall Plug
    8 BNC Analog/TVI ports on back
    You can also add 1 1080P IP camera from your network
    power box pigtails siamese cable

    Backwards Compatability.


    TVI is a HD over BNC cable solution that is Backward Compatible with Analog Cameras.It is perfect for upgrading to HD without having to replace wiring, but will not replace IP cameras as the dominant cameras of the future. TVI recorders can accept signal from TVI cameras (SCW, Samsung, TVT, and Hikvision make TVI cameras) or Analog cameras. TVI is a transitional technology to help people with already existing cable get higher resolutions. All new installations should use IP cameras and NVRs as IP can already do 5x the resolution as TVI.



  3. The Econ HD 16 Channel HD-TVI DVR - - SKU: EC1016

    The Econ HD 16 Channel HD-TVI DVR - - SKU: EC1016

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $599.00

    TVI Resolution Backwards Compatibility Features Connects Via
    With a TVI Camera
    720P at 30 FPS or 1080P at 12 FPS

    720PHD
    You can also connect Analog Cameras to this recorder and they will record at: 960h (960 x 480)

    2 hard drive bays
    Motion Detection
    Footage Download
    Online Viewing
    USB Backup
    VGA and HDMI Out
    Smartphone Apps
    Tablet Apps
    Windows Viewing + Apps
    Mac Viewing + Apps
    Easy Backup to USB and NAS
    Standard 3-Prong Wall Plug
    16 BNC Analog/TVI ports on back
    You can also add 2 1080P IP cameras from your network
    power box pigtails siamese cable

    Backwards Compatability.


    TVI is a HD over BNC cable solution that is Backward Compatible with Analog Cameras.It is perfect for upgrading to HD without having to replace wiring, but will not replace IP cameras as the dominant cameras of the future. TVI recorders can accept signal from TVI cameras (SCW, Samsung, TVT, and Hikvision make TVI cameras) or Analog cameras. TVI is a transitional technology to help people with already existing cable get higher resolutions. All new installations should use IP cameras and NVRs as IP can already do 5x the resolution as TVI.



  4. The Hawk 532 - 1080P TVI Fixed Lens Mini Bullet Camera

    The Hawk 532 - 1080P TVI Fixed Lens Mini Bullet Camera

    Backordered
    More on the way in 3-7 business days.

    $169.00

    Resolution Weatherproof Lens IR Distance Special Features

    High Definition
    1080p
    [email protected]
    or
    [email protected]
    Yes
    weatherproof
    rated IP66
    Fixed at 3.6 mm
    fixed lens
    ~75° of coverage
    Night Vision
    infrared
    at 65FT
    1080p HD-TVI Output
    Digital Zoom Only

    Learn about the 4 types of Zoom


  5. The Eagle 541 - 1080P TVI Multi-Purpose Adjustable Zoom Lens Bullet Camera

    The Eagle 541 - 1080P TVI Multi-Purpose Adjustable Zoom Lens Bullet Camera

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    $220.00

    Resolution Weatherproof Lens IR Distance Special Features

    High Definition
    1080p
    [email protected]
    or
    [email protected]
    Yes
    weatherproof
    rated IP66
    Vari-focal: 2.8mm - 12mm
    vari-focal lens
    98° - 30.5°

    What's the difference between varifocal and fixed lens and when would I use a varifocal?
    Night Vision
    infrared
    at 150FT
    1080p HD-TVI Output
    Digital Zoom and Optical Zoom

    Learn about the 4 types of Zoom


  6. The Patriot 511 - 1080P TVI Fixed Lens Dome Camera

    The Patriot 511 - 1080P TVI Fixed Lens Dome Camera

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    $169.00

    Resolution Weatherproof Lens IR Distance Special Features

    High Definition
    1080p
    [email protected]
    or
    [email protected]
    Yes
    weatherproof
    rated IP66
    Fixed at 3.6 mm
    fixed lens
    ~75° of coverage
    Night Vision
    infrared
    at 60FT
    1080p HD-TVI Out
    Digital Zoom Only

    Learn about the 4 types of Zoom


  7. Recon 521 - 1080P TVI Varifocal Lens Dome Camera

    The Recon 521 - 1080P TVI Varifocal Lens Dome Camera

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    $220.00

    Resolution Weatherproof Lens IR Distance Special Features

    High Definition
    1080p
    [email protected]
    or
    [email protected]
    Yes
    weatherproof
    rated IP66
    Adjustable 2.8-12mm
    fixed lens
    102°- 35°
    Night Vision
    infrared
    at 100FT
    Adjustable Lens

    Learn about the 4 types of Zoom


  8. Overseer 561 - 1080P TVI PTZ

    Overseer 561 - 1080P TVI PTZ

    Special Order.
    This item is available through special order. Will ship in 3-5 business days.

    $999.00

    Resolution Weatherproof Lens IR Distance Special Features

    High Definition
    1080p
    [email protected]
    or
    [email protected]
    Yes
    weatherproof
    rated IP66
    30x Optical Zoom
    varifocal lens
    from 4.7-94mm

    What's the difference between optical and digital zoom?
    Night Vision
    Night Vision
    infrared
    at 360FT
    Digital Zoom and PTZ Optical Zoom

    Learn about the 4 types of Zoom

8 Item(s)

per page

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